Seiko Cal. 6655 - 723

The Seiko 6655-723 represents an important milestone in Seiko's 1969 lineup. It features a Navy dial protected by a Acrylic crystal and offers 50m of water resistance. [seikata-wm-bad0651179db]

Also known as: Baby Tuna, Emperor

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

36mm

Case Thickness

14.3mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

50m

Dial Color

Navy

Jewels

24j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1969

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